diff --git a/pkg/component/controller/cplb_unix.go b/pkg/component/controller/cplb_linux.go
similarity index 99%
rename from pkg/component/controller/cplb_unix.go
rename to pkg/component/controller/cplb_linux.go
index b56bfdc699c4..9f7f1f28a1ad 100644
--- a/pkg/component/controller/cplb_unix.go
+++ b/pkg/component/controller/cplb_linux.go
@@ -1,5 +1,3 @@
-//go:build unix
-
 /*
 Copyright 2024 k0s authors
 
diff --git a/pkg/component/controller/cplb_windows.go b/pkg/component/controller/cplb_other.go
similarity index 72%
rename from pkg/component/controller/cplb_windows.go
rename to pkg/component/controller/cplb_other.go
index 93f023251030..48698989424f 100644
--- a/pkg/component/controller/cplb_windows.go
+++ b/pkg/component/controller/cplb_other.go
@@ -1,3 +1,5 @@
+//go:build !linux
+
 /*
 Copyright 2024 k0s authors
 
@@ -19,6 +21,8 @@ package controller
 import (
 	"context"
 	"errors"
+	"fmt"
+	"runtime"
 
 	k0sAPI "github.com/k0sproject/k0s/pkg/apis/k0s/v1beta1"
 	"github.com/k0sproject/k0s/pkg/config"
@@ -35,14 +39,14 @@ type Keepalived struct {
 	KubeConfigPath  string
 }
 
-func (k *Keepalived) Init(_ context.Context) error {
-	return errors.New("CPLB is not supported on Windows")
+func (k *Keepalived) Init(context.Context) error {
+	return fmt.Errorf("%w: CPLB is not supported on %s", errors.ErrUnsupported, runtime.GOOS)
 }
 
-func (k *Keepalived) Start(_ context.Context) error {
-	return errors.New("CPLB is not supported on Windows")
+func (k *Keepalived) Start(context.Context) error {
+	return fmt.Errorf("%w: CPLB is not supported on %s", errors.ErrUnsupported, runtime.GOOS)
 }
 
 func (k *Keepalived) Stop() error {
-	return errors.New("CPLB is not supported on Windows")
+	return fmt.Errorf("%w: CPLB is not supported on %s", errors.ErrUnsupported, runtime.GOOS)
 }